P1231
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Manufacturer Specific Definitions for P1231
| Make | Fault Location |
|---|---|
| Audi | Injector 7 - short to ground |
| Buick | Injector Circuit Cylinder 4 Intermittent |
| Cadillac | Injector Circuit Cylinder 4 Intermittent |
| Chevrolet | Injector Circuit Cylinder 4 Intermittent |
| Citroen | Fuel Pump Secondary Circuit Low, High Speed |
| Daewoo | Fuel pump relay – voltage high |
| Ford | High Speed Fuel Pump Relay Activated |
| Gm | Injector Circuit Cylinder 4 Intermittent |
| Hyundai | Fuel Pump malfunction |
| Land Rover | Fuel pump relay - short circuit to positive |
| Lincoln | Fuel pump -circuit malfunction |
| Mercury | High Speed Fuel Pump Relay Activated |
| Mitsubishi | Automatic stability control – implausible signal |
| Opel | Fuel pump relay |
| Peugeot | Fuel Pump Secondary Circuit Low, High Speed |
| Saab | Throttle position (TP) sensor 1 & 2 – range/performance problem |
| Suzuki | Fuel Pump Relay High Voltage |
| Volkswagen | Injector Circuit Cylinder 7 Short To Ground |
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